Xext: geext: unexport GERegisterExtension() and document it

Not used by any external module (eg drivers), so no need to keep it
exported. Also documenting it.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>

Xext/dpms.c

@@ -32,7 +32,7 @@ Equipment Corporation.
 #include <X11/Xproto.h>
 
 #include "os/screensaver.h"
-#include "Xext/geext.h"
+#include "Xext/geext_priv.h"
 
 #include "misc.h"
 #include "os.h"

Xext/geext.c

@@ -24,10 +24,13 @@
  */
 
 #include <dix-config.h>
-#include "windowstr.h"
-#include <X11/extensions/ge.h>
 
-#include "geext.h"
+#include <X11/extensions/ge.h>
+#include <X11/extensions/geproto.h>
+
+#include "Xext/geext_priv.h"
+
+#include "windowstr.h"
 #include "protocol-versions.h"
 #include "extinit_priv.h"
 

Xext/geext.h

@@ -31,11 +31,4 @@ from the author.
 #include <X11/Xfuncproto.h>
 #include <X11/extensions/geproto.h>
 
-/* Interface for other extensions */
-extern _X_EXPORT void GERegisterExtension(int extension,
-                                          void (*ev_dispatch) (xGenericEvent
-                                                               *from,
-                                                               xGenericEvent
-                                                               *to));
-
 #endif                          /* _GEEXT_H_ */

Xext/geext_priv.h

@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: MIT OR X11
+ *
+ * Copyright © 2024 Enrico Weigelt, metux IT consult <info@metux.net>
+ */
+#ifndef _XORG_GEEXT_PRIV_H
+
+#include <X11/Xproto.h>
+
+typedef void (*XorgGESwapProcPtr) (xGenericEvent *from, xGenericEvent *to);
+
+/*
+ * Register generic event extension dispatch handler
+ *
+ * @param extension base opcode
+ * @param event swap handler function
+ */
+void GERegisterExtension(int extension, XorgGESwapProcPtr swap_handler);
+
+#endif /* _XORG_GEEXT_PRIV_H */

Xi/extinit.c

@@ -60,11 +60,11 @@ SOFTWARE.
 
 #include "dix/dix_priv.h"
 #include "dix/exevents_priv.h"
+#include "Xext/geext_priv.h"
 
 #include "inputstr.h"
 #include "gcstruct.h"           /* pointer for extnsionst.h */
 #include "extnsionst.h"         /* extension entry   */
-#include "geext.h"              /* extension interfaces for ge */
 #include "extinit_priv.h"
 #include "exglobals.h"
 #include "swaprep.h"

present/present_event.c

@@ -21,7 +21,7 @@
  */
 #include <dix-config.h>
 
-#include "Xext/geext.h"
+#include "Xext/geext_priv.h"
 
 #include "present_priv.h"